Crash safety. If Chrome crashes, you get one single, short lived pop up to restore your tabs. If you miss it or can't click it for some reason, though luck.

Firefox, on the other hand, will simply always reopen your tabs and prompt you, in case the crash was its fault. In fact, losing ~50 open tabs in Chrome was what made me switch.

The tabs are still there even if you miss the prompt. Either press Ctrl-Shift-T, or select the three dots => History and the tabs are there, under the "Recently closed" section. The caveat is that you have to restore the tabs before you've browsed enough pages that the tabs are pushed out of the recently closed tabs. Also, I simulate Chrome crashing by sending SIGSEGV signal to it, but I'm pretty sure this applies even if Chrome crashes for real.

There are several URLs to crash Chrome in various ways, listed at the bottom of chrome://chrome-urls

For a lot of crashes (mostly due to X bugs - I have an "interesting" setup) I couldn't find those tabs in recently closed. I'll try to simulate it and maybe open a bug report; if it's only in my case this might be less of a general issue than I thought.

As a user it feels like all of the major browsers have been good enough for quite a while now. Is there anything other than bug fixes and performance improvements happening in that space these days?

Well we are seeing major browsers limit control in recent updates, so that's the new major browser race it seems. Safari and Chrome are locking down what you can do with extensions, which limits what you can do to protect your privacy online.

web standards are always evolving and updating. A lot of users don't appreciate that it's happening but it is. Firefox and Chrome do a pretty good job of keeping up. Chrome also adds a lot of proprietary additions to push the envelope as well as differentiate Chrome as well.

> A lot of users don't appreciate that it's happening but it is.

That kind of backs up what I was saying, doesn't it? The browsers are good enough for most of the users most of the time and the new features matter to fewer and fewer people.

Render consistency.

I was doing automated image capture of some data sites and diffing them to see if they changed. Chrome would jitter. Firefox drew the same bits every time.